Table 1

Number of people in the study sample by age, sex and social class

Age groups (years)		Men				Women		Total
Age groups (years)		Social class I+II	Social class III–V			Social class I+II	Social class III–V	Total
65–74	620	1638		762	1996	5 106
75–84	428	1075		684	1856	4 043
85+	75	228		251	628	1 182
Total	1 123	2 941		1 697	4 480	10 241

Those who were unclassified by social class (2.7%) have been randomly allocated in age/sex specific proportions to the two social class groups and those in the armed forces (1.3%) have been excluded.